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Priority to RO104550ApriorityCriticalpatent/RO82375B1/en
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Inventia se refera la un procedeu pentru prepararea unor derivati de 9-aminodibenzopiran cu formula generala I din pag.1 a descrierii, în care R1 reprezinta un atom de hidrogen, R2 reprezinta un radical alchil cu 5...10 atomi de carbon, alchenil cu 5...10 atomi de carbon, R3 reprezinta un atom de hidrogen sau un radical metil, R5 reprezinta un radical alchil cu 1...4 atomi de carbon, un radical descris în pag.1 a descrierii.The invention relates to a process for the preparation of 9-aminodibenzopyran derivatives of the general formula I of page 1 of the description, wherein R 1 represents a hydrogen atom, R 2 represents a C 5 to C 10 alkyl, alkenyl with 5 to 10 carbon atoms, R3 represents a hydrogen atom or a methyl radical, R5 represents an alkyl radical of 1-4 carbon atoms, a radical as described in page 1 of the description.
RO104550A1979-02-131979-02-13Process for preparing 9-amino-dibenzopyran derivatives
RO82375B1
(en)